Bronzing machine



Dec. 13, 1932. FfR \BELLUCHE BROlfIlZING MACHINE Filed July 27, 1928 (EB/WWW Frank E50]]U5]7Q as 0% Patented Dec. 13, 1932 FRANK R. BELLUCHE, OF RACINE'WISCONSIN, ASSIGNOB, IO CHRISTENSEN MACHINE COMPANY, OF RACINE, WISCONSIN, AGQRPORATIGIQ' OF 'WISCONSIN .BRONZING MACHINE Application filed July 27,

rubbed in mechanically. In order to give a highly reflective surface, it becomes necessary to iron or calender the work. Heretofore, the calendering has been accomplished separately from the bronzing operation and at a time when the size has had suliicient time to set. we

To properly calender the surface at such a time considerable pressure must be applied, and heat may also benecessary under certain conditions. It has been found thatby com,- bining the. calendering operation with the bronzing and having the calendering follow ing immediately after the bronzing operation that all heat treatments may be dispensed With and the pressure necessary to produce proper calendering be considerably reduced. This follows from the fact that the glue or size is still in a semi-plastic condition and only slight pressure will thoroughly embed the bronzing material in the size and give a desirable highly reflective surface.

It is a particular object of the presentinvention,therefore, to calender the work directly following the bronzing operationv before the size hasset, thereby eliminating the necessity fora heating element and considerably reducing the pressure required to give the satisfactory surface. V e 7 Another object of this invention resides in the provision of a bronzing machine in which one of the work carrying cylinders functions as a calendering device.

And a more specific object of this invention resides in the provision of a bronzing machine having a bronzingcylinder movably mounted so as to press or calender the sheets between it and a delivery cylinder.v

With the above and other objectsin view which Will appear asthe description pro- 5 ceeds, my invention resides in the novel con- 1928. Serial 1%. 295,717.

struction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by the appended claims, it being understood that such .changes in the precise embodiment of the hereindisclosed invention may be made as come ithin the scope of the claims.

In the accompanying drawing, I have illustrated one complete example of the physical embodiment of my inventionconstructed according to the best mode I have so far devised for the practical application of the principles thereof, 'and in which:

Figure l is a side elevational view of a bronzing machine withparts broken away ang in section to illustrate structural details, an v Figure 2 is a sectionalfview taken through Figure 1 on the plane of, the line 2+2. i 4

Referring now more particularly to the accompanying drawing in which like numerals designate like parts, 5 represents the feed side frame and 6 the gear side frame of a bronzing machine of that type described in my copending application Serial No. 285,030. Bronzing machines of this type are usually placed so as to receive work directly from the press over tapes 7 from where itis picked up by a bronzing cylinder 8 to be carried past a bronzing roll orbrush 9 which deposits bronzing material carried in a pan or trough 10 onto the work. A bronzing pad:11 rubs the bronze into the work as' it passes therebeneath and a series of cleaning rolls 12 rapidly rotated in a direction opposite to the direction of movementofthe work, removes the excess bronze which is drawn from the interior of the machine by an eXhauster 13 through a passage, not shown, connecting the exhauster with the interior of the machine throughan opening 14.

After passing the cleaning rolls 12 the work or sheets are transferred from the bronzing cylinder to a delivery cylinder 15 on. which the under surface of the sheet is cleaned by a cleaning roll 16 before being deposited onto the delivery tapes 17 to be discharged from the machine.

The delivery cylinder 15 is. rotatably mounted by a shaft 17 journaled in bearings supporting arms 20. The arms have their upper ends rotatably secured to the adj acent side frames by studs 21 fixed in apertures 22 in the side frames and having bearingpon tions 23 on which the arms 20 pivot, aheador enlargement 24 maintaining the arms 20 against longitudinal movement on the studs. The studs 21 are soplaced that the cylinder 8 which is positioned above and to one side of the cylinder 15 has the major portion of its weight supported by the cylinder 15 so that the sheets passing through the machine are rolled or calendered'between the cylinders as will be, readily apparent. V

I Extensions 25 are formed on the outer free end's'of" the arms 20 to provide bearing surfaces against whichv the ends of pressure screws 26 abut to maintain the cylinder 8 in juxtaposition with respect to the cylinder 15'. The pressure screws 26 are threaded in block members 27 having studs 28 by Which they are secured in the side frames.

A. cleaning roll'29 is provided to. clean the surface of the delivery cylinder 15 before it engages the freshly bronzed sheets and if desired an additional calendering cylinder 30 may be mounted directly above the cylinder 15. The weight of the cylinder 30 is assisted by springs 31.0r other like pressure applying means at the bearings ofthe cylinder to m aintain a pressure. on the sheets passingtherebeneath. As. the cylinder 30 engages only on the, reverse side of the sheets it is not necessary to clean the same.

It is obvious that the cylinders 8 and 30 must, of necessity, possess considerable weight in order to. properly calender the work. In conformance with this principle, the-cylinders. may, if desired, be made of metal or other similar material. which will lend the necessary weight thereto.

Itwill be noted. that thecalendering is effected directly. after the sheet has been bronzed ata time when the size is still moist and the bronze comparatively soft and pliable so that the pressurerequired for effective calendering is not as excessive as that required'when the workis calendered after the bronzing is completed. and the material, is thoroughly set.

A secondpair of pressure. screws 32 thread ed in mounting studs .33 are provided to en.-

' gage the opposite sides of. theextension 25 and support the weight of the bronzing cylinder 8 whenit is desired torender the calendering feature inoperative. The screws 32 are normally retracted'and when in operative position the screws26 are retracted.

WhatI claim as my invention is: V 1. In a bronzing machine having a frame and a pair of. superimposed work carrying cylinders, means to rotatably mount the upper cylinder from the frame with its weight partially carried by the lower cylinder to subject work passed through the machine and between the cylinders to calendering pressure, and means operable to hold the upper cylinder out of engagement with the lower cylinder whereby work may be passed between-the cylinders Without being subjected to calendering pressure.

2. In a combined bronzing and calendering machine, the combination of a frame, a delivery, cylinder rotatably mounted in said frame, a work carrying cylinder pivotally and rotatably carried in said frame and partially supported on said delivery cylinder to galenderwork passingbetween said cyliners.

3. In a-combined bronzi'ng and calendering. machine, the combination of a frame, a delivery cylinder rotatably mounted in said frame, a work carrying cylinder pivotally and rotatably carried by said frame, and partially supported on said delivery cylinder, and means to increase the pressure between said delivery cylinder and-said work carrying cylinder.

4:. In a combined bronz-ing and ca-lendering machine, the combination of a frame, a delivery cylinder rotatably mounted in said frame, a work carrying cylinder pivotally and rotatably carried by said frame, and partially supported on said delivery cylinder, and means to remove the weight of said work carrying cylinder from saidwork receiving cylinder.

5. In a combined bronzing and calendering machine, thecombination of a frame, a delivery cylinder rotatably mounted in said frame, a-workcarrying cylinder mounted in said'frame and partially supported by said delivery cylinder, a cal'endering roll rotatablymounted in, said frame and in contact with said. delivery cylinder, and resilient means constantly urging said calendering roll into contact with said delivery cylinder.

6. In a combinedbronzing and calendering machine, the combination of a frame, a delivery cylinder rotatably mounted in said frame, a work carrying cylinder-pivotally and rotatably mounted in said frame and partially supportedon said delivery cylinder, a calendering cylinder. rotatably mounted in said frame, and means urging said calendering cylinder, into, engagement with said delivery cylinder.

7 In a combined bronzing and calenderin g machine,,the combination with a frame, of a pair of super-imposed cylinders, means to rotatably mount the upper cylinder in the frame withthe ,weigh't of said upper cylinder carried partially-by the frame and partially by the lower cylinder," the weight oflsaid'upper cylinder producing calendering pressure between the cylinders, and meansto vary said pressure.

8. In a combined bronzing and calendering machine, the combination of a frame, a delivery cylinder rotatably mounted in said frame, a work carrying cylinder rotatably mounted in said frame and being partially supported by said delivery cylinder, the weight of said work carrying cylinder producing a pressure between said work carrying and said delivery cylinders, means to vary said pressure, a calendering cylinder rotatably mounted in said frame and in contact with said delivery cylinder, and means to produce pressure between said calendering cylinder and said delivery cylinder.

9. In a combined bronzing and calendering machine, the combination of a frame, a delivery cylinder rotatably mounted in said frame, a work carrying cylinder rotatably mounted in said frame and being partially supported by saiddelivery cylinder, the weight of said work carrying cylinder producing a pressure between said work carrying and said delivery cylinders, means to vary said pressure, a calendering cylinder rotatably mounted in said frame and in contact with said delivery cylinder, and spring meansresiliently urging said calendering cylinder into contact with said delivery cylinder.

10. In a combined bronzing and calendering machine, the combination of a frame, a delivery cylinder rotatably mounted in said frame, a work carrying cylinder rotatably mounted in said frame and in contact with said delivery cylinder, means to rotate said cylinders in opposite directions whereby the contacting points travel in the same direction, means to distribute bronze onto the work, means to remove excess bronze from the front face of the work, means to remove excess bronze from the rear face of the work, and means to remove excess bronze from the delivery cylinder.

11. In a combined bronzing and calendering machine, the combination of a frame, a delivery cylinder rotatably mounted in said frame, a work carrying cylinder rotatably and pivotally mounted in said frame and contacting with said delivery cylinder, means to distribute bronze onto the work, means to remove excess bronze on the front face of the work, means to remove excess bronze from the rear face of the work, and means to remove the excess bronze from the delivery cylinder.

12. In a combined bronzing and calendering machine, the combination of a frame, a delivery cylinder rotatably mounted on said frame, a work carrying cylinder rotatably and pivotally mounted in said frame and contacting with said delivery cylinder, a calendering cylinder rotatably mounted in said frame and contacting with said delivery cylinder, means constantly urging said calendering cylinder into contact with said delivery cylinder, means to distribute bronze onto the work, means to remove excess bronze from the front face of the work, means to remove excess bronze from the rear face of the work, and means to remove excess bronze from the delivery cylinder.

13. In a combined bronzing and calendering machine, the combination of a frame, a delivery cylinder rotatably mounted on said frame, a work carrying cylinder'rotatably and pivotally mounted in said frame and contacting with said delivery cyiinder, means to vary the pressure between said work carrying cylinder and said delivery cylinder, means to distribute bronze onto the work, means to remove excess bronze from the front face of the work, means to remove excess bronze from the rear face of the work, and means to remove excess bronze from the delivery cylinder.

14. In a combined bronzing and calendering machine, the combination of a frame, a work carrying cylinder, a delivery cylinder receiving work from said work carrying cylinder, one of said cylinders being rotatably mounted in said frame, the other'said cylinder being rotatably and pivotally mounted in said frame and partially supported on said first mentioned cylinder to calender the work as it passes through the machine.

15. In a combined bronzing and calendering machine, the combination of a frame, a work carrying cylinder, adelivery cylinder receiving work from said work carrying cylinder, one of said cylinders being rotatably I mounted in said frame, the other said cylinder being rotatably and pivotally mounted in said frame and partially supported on said rotatably mounted cylinder to produce a pressure between said cylinder, and means to vary the pressure between said cylinders.

16. In a combined bronzing and calendering machine, the combination of a frame, a Work carrying cylinder, a delivery cylinder receiving work from said work carrying cylinder, one of said cylinders being rotatably mounted in said frame, the other said cylinder being rotatably and pivotally mounted in said frame and partially supported by said rotatably mounted cylinder, a calendering roll rotatably mounted in said frame and supported on one of said cylinders, and means constantly urging said calendering roll into contact with said rotatably mounted cylinder.

17. In a combined bronzing and calendering machine, the combination of a-work carrying cylinder rotatably mounted in said frame, means to distribute bronze on said work passing over said work receiving cylinder, a delivery cylinder rotatably mounted in said frame and receiving work from said work carrying cylinder, the weight of one of said cylinders being partially supported on said other cylinder to calender the work passing therebetween.

18. In a bronzing machine having a frame and a pair of work carrying cylinders, means to,- rotatably mount one of said cylinders from the frame withv the weight thereof partially carried by the other said cylinder to subject work passed. through. the machine and betweenthe cylinders to calendering pressure, a calenderin roll in contact with said second named cylinder and means operable to' hold the first mentioned. cylinder out of engagement with the second mentioned cylinder independently of the action of said calendering roll,- whereby workmay be passed between the cylinders without being subjected to calendering pressure.

19. In a combined bronzing and calendering machine, the combination ofa frame, a workcarrying cylinder rotatably mounted in said. frame, a delivery cylinder rotatably mounted in said frame and adapted to receive.v work from said work carrying cylinder, means torotatably mount said work carrying cylinder from the frame with a portion of the weight thereof carried directly by the frame and a portion carried by the delivery cylinder, the weight of said work carrying cylinder producing a pressure between said cylinders whereby work passing therebetween is calendered by the pressure produced.

20. In a combined bronzing and calendering machine, the combination of a frame, a

work carrying cylinder mounted in said frame, a delivery cylinder mounted in said frame and receiving work from said work carrying cylinder, means to rotatably mount one of said cylinders in said frame, means to rotatably mount the other said cylinder from the frame with a portion of the weight thereof carried by the first named cylinder whereby work passing between said cylinders is subjected to calendering pressure in passing through the machine.

21. In a combined bronzing and calendering machine, the combination of a frame,

a work carrying cylinder mounted in said frame, a delivery cylinder mounted in said frame and receiving work from said, work carrying cylinder, means to rotatably mount one of said cylinders in said frame, means to rotatably mount the other said cylinder from the frame Wit-ha portion of the weight there- 7 ofcarried by the first named cylinder, whereby work passing between said cylinders is subjected to calend'ering pressure in passing through the machine, and means to Vary the pressure between the cylinders.

In testimony whereof I have hereunto affixed my signature.

FRANK R. BELLUCHE. 

